I have custom rims and Kumho 205/45/RF17 run-flats on my 2007 R56 Mini Cooper S (not convertible), and the tire pressure light came on. I checked, and indeed one of the tires was low (around 29 psi) but when I inflated them all to 38, in the service menu, the warning still did not give me an option to dismiss.

Now I can't find the correct psi for these tires. The Max Pressure on the side says 51 (!) but the recommendation on the sticker on the inside of the door was 38. Does the sticker apply no matter what rims and tires I have on there?

EDIT: I still am wondering if the sticker on the door applies to ALL tires you could put on a car. However I found a step-by-step guide to resetting the pressure alert, which I will also try.

The procedure varies by model year. Can you post some specifics, Mini model year and tire brand and model.
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mikesAug 30 '13 at 22:59

Thanks @mikes. I edited the question to include more specifics.
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beroeAug 31 '13 at 0:01

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@beroe: first make sure these are NOT sensors that can only be cleared by the dealership. Lexus does this on some vehicles.
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Greg McNultyAug 31 '13 at 0:42

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That is a good point, Greg. It is possible, but I have gotten the tires (and rims) replaced by third-party shops before, and they were able to reset. I think the pressure sensor is actually a balance sensor of some kind, right? In the manual it shows a "Reset Alert" function but it doesn't show up in my console next to the error.
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beroeAug 31 '13 at 0:46